1145131343 has 2 divisors, whose sum is σ = 1145131344. Its totient is φ = 1145131342.

The previous prime is 1145131331. The next prime is 1145131357. The reversal of 1145131343 is 3431315411.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1145131343 - 2⁴ = 1145131327 is a prime.

It is a super-2 number, since 2×1145131343² = 2622651585441967298, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1145133343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572565671 + 572565672.

It is an arithmetic number, because the mean of its divisors is an integer number (572565672).

Almost surely, 2^1145131343 is an apocalyptic number.

1145131343 is a deficient number, since it is larger than the sum of its proper divisors (1).

1145131343 is an equidigital number, since it uses as much as digits as its factorization.

1145131343 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 26.

The square root of 1145131343 is about 33839.7893462711. The cubic root of 1145131343 is about 1046.2089571173.

Adding to 1145131343 its reverse (3431315411), we get a palindrome (4576446754).

The spelling of 1145131343 in words is "one billion, one hundred forty-five million, one hundred thirty-one thousand, three hundred forty-three".